US STOCKS-Wall St extends gains as Fed leaves stimulus in place Reuters Federal Reserve sticks to stimulus in statement * Cyprus banking crisis a reminder of global risks * Homebuilders' stocks jump after Lennar earnings * Dow up 0.5 pct; S&P 500 up 0.8 pct; Nasdaq up 0.8 pct By Caroline Valetkevitch NEW YORK, March 20 ... |






